Ok, so next year I want to try my hand at building a race bike, I am picking up a beautiful RC for the street in one month, that bike will remain babied and cared for for it's entire life (with me).

As for building a race bike, I REALLY want to begin collecting a base motor and race motor parts, I will collect any high perf pieces I can, and am still searching for clues on what parts to get and where to dig them up.

Is there any kind of info out there on building a very high performance RC engine? Books? Build sheets or HRC/Racer info?

Were lightweight cranks even made?

What type of lightweight connecting rods should I look for?

Heads? Head work? valves and Cams?

After Christmas I will start looking for stuff, please give me your guidance..

Search the forum, there is plenty out there on this. Talk to ogiehooker, he is putting together a motor at the moment. If you look up his thread, most of your questions will be answered.

The HRC stuff is very hard to find and is expensive. If it pops up, there are a few guys who usually grab it immediately and pay a lot of money for it.....ask me how i know.

HRC had a lightened crank, one actually popped up last year on ebay.

Horde performance will put a motor together for you or if you really want to talk to someone who knows what he is talking about, contact Roger Ditchfield at RevolutionUK. Very close ties with the Moriwaki family, and built a few VTRs for BSB. They still build Stage 1, 2, and 3 motors for the RC.

Stage 2 cams are available but require a stage 2 valvetrain.....which would be HRC or Moriwaki. Both are hard to find. Roger can help you out with that though. Kibblewhite will make titanium retainers with a special order.

Carrillo rods are available but ogiehooker was having an issue with them.

JE pistons are available and i believe are HRC spec.

I have all the HRC manuals etc on digits, i can email you if you want. Other then that your best bet is to search through the forum and speedzilla archives for info, especially for the HRC stuff.

If you go to my build thread, it will explain alot as well.

Last piece of advice i have is be careful of HRC parts. they are almost always used and all of this stuff was designed to be used in conjunction with other HRC parts. To get one part to work usually requires solving a puzzle and tracking down unobtainium parts which end up costing thousands of dollars for a few horsepower and a lot of work figuring how to get it all to work....because very few people owned or raced the complete racers. Its all a big puzzle.

Search the forum, there is plenty out there on this. Talk to ogiehooker, he is putting together a motor at the moment. If you look up his thread, most of your questions will be answered.

The HRC stuff is very hard to find and is expensive. If it pops up, there are a few guys who usually grab it immediately and pay a lot of money for it.....ask me how i know.

HRC had a lightened crank, one actually popped up last year on ebay.

Horde performance will put a motor together for you or if you really want to talk to someone who knows what he is talking about, contact Roger Ditchfield at RevolutionUK. Very close ties with the Moriwaki family, and built a few VTRs for BSB. They still build Stage 1, 2, and 3 motors for the RC.

Stage 2 cams are available but require a stage 2 valvetrain.....which would be HRC or Moriwaki. Both are hard to find. Roger can help you out with that though. Kibblewhite will make titanium retainers with a special order.

Carrillo rods are available but ogiehooker was having an issue with them.

JE pistons are available and i believe are HRC spec.

I have all the HRC manuals etc on digits, i can email you if you want. Other then that your best bet is to search through the forum and speedzilla archives for info, especially for the HRC stuff.

If you go to my build thread, it will explain alot as well.

Last piece of advice i have is be careful of HRC parts. they are almost always used and all of this stuff was designed to be used in conjunction with other HRC parts. To get one part to work usually requires solving a puzzle and tracking down unobtainium parts which end up costing thousands of dollars for a few horsepower and a lot of work figuring how to get it all to work....because very few people owned or raced the complete racers. Its all a big puzzle.

Thanks for the reply, I will take you up on the manuals if you don't mind (pm sent), I used to build most of my own motors many years ago, but never built a twin, so it will be more of a labor of love than anything...

1986 Honda Interceptor...learned on it
1988 Yamaha Radian...wheelied on it
1990 Yamaha FZR...friend totaled it
1997 Honda Shadow...wife stole it
1998 Yamaha YZF...noob tree'd it
2002 Honda 954RR...just sold it
2005 RC51...finally found it

1986 Honda Interceptor...learned on it
1988 Yamaha Radian...wheelied on it
1990 Yamaha FZR...friend totaled it
1997 Honda Shadow...wife stole it
1998 Yamaha YZF...noob tree'd it
2002 Honda 954RR...just sold it
2005 RC51...finally found it

Response received, looks like they even know about DHC's work across the pond

STAGE 2A TOP END ONLY UPGRADE
1) Supply Moriwaki pressurised airbox C/Fibre = £850.00 GBP FRP £695.00 GBP This the best one but DHC in Canada (Matthew Boux) makes a similar air box
2) YOUR OWN suitably Ported & Gasflowed and reconditioned cylinder heads including polished valves and re-shimming = £600.00 GBP*
3) Revolution Billet Performance camshafts with slotted cam wheels and complete valve spring kit = £1650.00 GBP
4) Moriwaki thermostat replacement kit = £235.00 GBP
If you do this you only need to send me the cylinderheads and I will do all the rest. You will only have to refit the heads and set the valve timing.

The following can be done locally in the USA

5) Remove the Flapper valve mechanism
6) Remove the paper filter from inside the OEM air filters
7) Fit Dynojet PC111 Power Commander
8) Independant Dyno tune to suit.
11) This must be used in conjunction with free-flowing (no baffles) Aftermarket Slip-on exhausts or Full exhaust

5) Remove the Flapper valve mechanism
6) Fit K&N Filters
7) Fit Dynojet PC111 Power Commander or the Czechoslovakian IGNITEC reprogrammable ECU (see Internet for company info)
8) Independant Dyno tune to suit.
11) This must be used in conjunction with free-flowing (no baffles) Aftermarket Slip-on exhausts or Full exhaust
Full exhaust is more suitable fot this spec than Slip-ons

BHP aprox 150+ @ R/wheel (Maximum previously achieve 160 bhp)

1986 Honda Interceptor...learned on it
1988 Yamaha Radian...wheelied on it
1990 Yamaha FZR...friend totaled it
1997 Honda Shadow...wife stole it
1998 Yamaha YZF...noob tree'd it
2002 Honda 954RR...just sold it
2005 RC51...finally found it

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